What Kind Of Sandpaper Is Used To Paint External Walls?

When shopping for sandpaper, it is important to remember that the lower the grit number, the coarser the grains of sand or abrasive material will be. Conversely, the higher the grit number, the finer the grits or grains of sand or abrasive material will be. A medium grit sandpaper with a range of 100 to 150 grit is suitable for this step, providing a good balance for the new paint to grip.

When working with softwood, use a fine grit sandpaper and sand diagonally across the grain of the timber. If you’re preparing to apply paint, finish with a light hand. Smoothing walls before painting is necessary for surfaces previously painted with a gloss or high-gloss paint. For previously painted water-based paint, sand with a fine-grit.

Power washing is a great way to prepare exterior walls for painting by removing dust, cobwebs, flaking paint, and dirt, leaving a clean, even surface for the paint. The most difficult part of that prep is sanding and scraping. Sand all wood and paint with 80 grit paper and power sanders, which removes more failing paint. Spackle all rough areas and defects on siding and trim as agreed.

It is recommended to use coarse sandpaper sand all surfaces smoothly, gradually removing the differences between paint and any adjacent wood. For previously painted water-based paint, sand with a fine-grit sandpaper. For oil-based paint, a medium-grit sandpaper (100- to 150-grit) should be used. For heavy sanding or stripping, go with coarse 60-grit sandpaper. If you just want to smooth the surface and remove minor imperfections, medium 120-grit sandpaper is recommended.

In conclusion, choosing the right sandpaper is crucial for preparing exterior walls for painting. Sanding is a crucial step in the process, and selecting the right sandpaper is essential for achieving a smooth, polished surface.